The Centre for Independent Language Learning (CILL), which is part of the English Language Centre of the Hong Kong Polytechnic University, provides on its home page excellent materials that ESL students looking to learn English online can make good use of.
Features:
• Lessons, exercises and activities on major skill and knowledge areas of English: listening, speaking, reading, writing (including letter writing), pronunciation, grammar and vocabulary
• Extensive coverage of EAP (English for Academic Purposes), EIW (English in the Workplace) and EPP (English for Professional Purposes)
• A-Z index of all materials for effective reference
• Links to multiple online dictionaries and thesauruses
• Separate pages listing recent updates and most popular contents
